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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
HDA36100BHUA
HDA36100BHUA
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUAYP
HDA36100BHUAYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUD
HDA36100BHUD
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUDYP
HDA36100BHUDYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUH
HDA36100BHUH
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUHYP
HDA36100BHUHYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUJ
HDA36100BHUJ
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUJYP
HDA36100BHUJYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUK
HDA36100BHUK
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUKYP
HDA36100BHUKYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUN
HDA36100BHUN
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUNYP
HDA36100BHUNYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUO
HDA36100BHUO
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUOYP
HDA36100BHUOYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUP
HDA36100BHUP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUPYP
HDA36100BHUPYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUR
HDA36100BHUR
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHURYP
HDA36100BHURYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUS
HDA36100BHUS
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHUSYP
HDA36100BHUSYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BHYP
HDA36100BHYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100BK
HDA36100BK
In Stock
From
$1,782.47
Square D
100
600
HDA36100BKSD
HDA36100BKSD
In Stock
From
$1,782.47
Square D
100
600
HDA36100BKSDYP
HDA36100BKSDYP
In Stock
From
$1,782.47
Square D
100
600
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.